Draper



Aug. 6, 1929. c. .KOOPMAN 1,723,357

DRAPER Filed July 19, 1927 A Inventor t I Click/es Aoopman A ttorneyPatented Aug. 6, 1929.

UNITED STATES CHARLES KOOIIIIAN,

OF PINE, OREGON.

DR-APER.

Application filed July 19,

My present invention relates to an in1- proved draper or endlesscarrier, also known as an endless apron or conveyor for use inharvesting and other farming machinery. As is well. known to those'tainiliar with this type of machinery, mostof the drapers now in use onharvesting; machines einploy bolts that are sulriect to wear and quicklyheroine useless under the strains and friction iinposed thereon duringthe operation of the machinery. The primary object of my invention isthe provision oi a draper in which worn parts may be replaced andrepairs made in order that the draper, as a whole, may be made moredurable and lasting, thus decreasing the cost of rephiicing the worndiapers. hficans are provided for facilitatin; the adjustment of thebelt to take up slack therein, due to 'triction and. wear, and the.slats or cleats used as the carriers on the draper are fashioned in suchmanner as to enhance their carrying- 'apacity, thus increasing; theclliciency ot the draper.

The invention consists 'n certain novel combinations andarral'tgl'einents of parts as will hereinafter he more fully pointed outand claimed.

in the a :coinpanyi'ng drawings 1 have illustrated one complete exampleof the physical einlmdiuient of my invention wherein the parts arecoinhined and arranged acci'nding to the best mode I have thus fardevised for the practical application of the principles of my invention.

Figure 1 is a perspective view ot a draper oi endless carrii constructedaccording to lll invention, with parts omit-ted -for convenience ofillustration.

lli;;;'ui.'e 2 is an enlarged detail edge view of a part of the upperlightof the draper.

l igure 3 is a detail sectionalview showinc the manner of attachin theslats to the belts or straps.

In carrying out my invention the usual rolls 1. and 2 are employed andprovided with the shafts 8, one o'li which is used for driving thedraper, through its roll.

"The apron o1 carrier includes a number raps or w belts the edge: straps5 vrmcdiate pa 6 and Ti 1927. Serial No. 206,868

.l"'hesc straps may be made up of leather, canvas, or other suitableflexible material, and the number of spaced straps may be varied withthe length of the rolls. The ends of the straps are joined by anysuitable type of buckle as 8, and this plurality or series of strapsforms the supporting belt oil the draper. The buckles or joined ends ofthe straps are alined transversely of the draper and the buckles arecovered by means of a transversely extending; flap 9 which may be madeof leather, canvas or other material that will lie snugly over thebuckles and form a, shield to prevent gra n falling through the draperat this point ()no edge of the flap, as 10, is secured between theseveral straps and one of the slats as 1], as best seen in Figure 2,said slats being fashioned, preferably from wood and provided withoppositely tapering edges 12 and 13. The slats are disposed transverselyof the draper and they are secured to each strap by means of a rivet 14that is passed through the strap and slut, and the head. 15 of the rivetis located in a. countersunk recess 16 ol. the slat. The narrower faceof each slat is attached to the straps, and the wider :taces or outerfaces of the slats touch at their opposite edges, as seen in Figures 2and 3 to permit flexible movement oi the draper about the rolls and toprevent grains from falling between the slats of the carrier.

(in their outer faces the slats are concaveil, as at 17, and thoseconcavities fol/1n longitudinally extending, shallow, trougl'ls, thetroughs of course extending transversely of the draper. The slats orcleats as thus fashioned have an increased carrying capacity over a slathaving a flat carrying face, and the slats, due to their concavecarrying faces, prevent the grain falling oil the draper.

It will. be apparent that the slats, when worn, may readily be replacedwith new ones at slight cost, the buckles and straps Ditty also berepaired or replaced with facility when required, and the draperp ay bemain id in its required taut cou t t on by tahi up the slack fromti'hriii to la,

s 21;; buckles Having thus fully described my invention, What I claimnew and desire to secure by Letters Patent is A draper comprising a.pair of spaced 5 rolls and a plurality of spaced straps having jointedends and means for covering said ends, transversely dlsposed Woodenslats and rivets securing said slats to the straps, said slats havingexterior, concave, longitudinally extending carrier faces and taperedsides forming frietionally engaging edges at the carrier faces, wherebya continuous carrier face is provided for the'draper.

In testimony whereof I afiix my signature.

CHARLES KOOPMAN.

